This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | Invalid Date |
| Upload Date | 21 July 2011 |
| File Name | iPhone3,1_4.3.5_8L1_Restore.ipsw |
| File Size | 0.65 GB |
| SHA256sum | 54040d08602e6a9894a4671393b0c335d51bdb55a3e28a336676c5facc592349 |
| MD5sum | 7219c43eea7362c7a402861f71b4496e |
| SHA1sum | 7099307319c669356955e9aff11a3129d6b8d8b4 |
| Identifier | iPhone3,1 |
cd ~/Downloads.idevicerestore -e iPhone3,1_4.3.5_8L1_Restore.ipsw and press Enter.